feat: api v9 and threads (#5570)

Co-authored-by: Noel <icrawltogo@gmail.com>
Co-authored-by: Amish Shah <dev@shah.gg>
Co-authored-by: Vlad Frangu <kingdgrizzle@gmail.com>
Co-authored-by: SynthGhost <60333233+synthghost@users.noreply.github.com>
Co-authored-by: SpaceEEC <24881032+SpaceEEC@users.noreply.github.com>
Co-authored-by: Elliot <elliot@maisl.fr>
Co-authored-by: Antonio Román <kyradiscord@gmail.com>
Co-authored-by: Sugden <28943913+NotSugden@users.noreply.github.com>

src/structures/GuildChannel.js

@@ -368,6 +368,8 @@ class GuildChannel extends Channel {
    * @property {OverwriteResolvable[]|Collection<Snowflake, OverwriteResolvable>} [permissionOverwrites]
    * Permission overwrites for the channel
    * @property {number} [rateLimitPerUser] The ratelimit per user for the channel in seconds
+   * @property {ThreadAutoArchiveDuration} [defaultAutoArchiveDuration]
+   * The default auto archive duration for all new threads in this channel
    * @property {?string} [rtcRegion] The RTC region of the channel
    */
 
@@ -428,6 +430,7 @@ class GuildChannel extends Channel {
         parent_id: data.parentID,
         lock_permissions: data.lockPermissions,
         rate_limit_per_user: data.rateLimitPerUser,
+        default_auto_archive_duration: data.defaultAutoArchiveDuration,
         permission_overwrites,
       },
       reason,